In the sea of unit converters that exists on the App Store, "Units - convert yards, meters, mph, kmh etc" is a breath of fresh air. Its headline feature is easily the most useful addition to this niche market. It's good to have support for obscure units and Units delivers well, with hundreds of units across more than a dozen categories. However, most of the time you need just few well chosen pairs.
Thus, for example, you can choose:
* Kmh to mph
* Km to mi
* Kg to lb
* Celsius to Fahrenheit's
* Square foot to square meters
Users have all conversions on one screen (see the included screenshot of the main feature). No hierarchy to browse through every time, no unnecessary typing and hunting each time you need those - start the app and they are already there.
How do you find them in the first place? Units has instant search, available from any screen - just type few letters and app will instantly filter the results. From there, one tap directly leads to the conversion screen and pre-populates the chosen unit. Each conversion screen gives you instant conversion from one unit to all the others in its category.
Lastly, Units features custom, unique interactive keyboard, optimized for unit conversion. The keyboard has integrated calculator which you can easily swipe out if you don't need it and swipe back in when you do need it.
Units - convert yards, meters, mph, kmh etc. 1.0 is $1.99 USD (or equivalent amount in other currencies) and available worldwide exclusively through the App Store in the Utilities category.